Answer:
0.267
Explanation:
The Mach number is given by the following formula:
[tex]Ma = \frac{v}{c}[/tex]
where v = speed of the object
c= speed of air
Ma = Mach number
From the data:
Velocity of the object = 91.44 m/s
Velocity of air = 343 m/s
Therefore, the Mach number is given by the following formula:
Ma = [tex]\frac{91.44}{343}[/tex]
= 0.267
